In a new study, researchers examined records from nearly 600-hundred prostate cancer patients who had either brachytherapy-radioactive seed treatment, or radiation beam treatment...

260 of them reported post-treatment erectile dysfunction.

Through DNA examination, the team discovered 12 genetic markers associated with the development of E.D. in patients treated with radiation.

Researchers hope the discovery of these markers will one day lead to a blood test that helps predict which men are at high risk for sexual side effects. The goal is to arm doctors and patients with the information they need to choose the best treatments for their specific cancer and lifestyle.

It's estimated that nearly 242-thousand new prostate cancer cases will be diagnosed in the U.S. in 2012.

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